The movable type was invented around AD 1040 in China during the Song Dinasty. It was a way of printing in which movable elements were used to reproduce documents, usually on paper. It had a great influence on learning if we consider that paper books could be printed and spread to different places
Answer:
Al conjunto de acontecimientos ocurridos en el pasado se lo denomina Historia.
Explanation:
La historia es la disciplina que se encarga del análisis y la reconstrucción de hechos ocurridos en el pasado, sus causas y consecuencias, y los efectos que estos causaron y, en muchos casos, continúan causando. Así, mas allá de un simple repaso del pasado, la historia busca desentrañar las cuestiones subjetivas de dichos eventos y su implicancia en eventos posteriores.
Es entonces una ciencia social, en tanto estudia las formas en que estos eventos afectaron y afectan a las personas, modificando sus entornos sociales y naturales e incluso sus condiciones subjetivas internas (como religión, apoyo político, etc.).
Green revolution refers to the drastic increase in food production during 1960s in the developing countries.
Two intended outcomes: 1. HYV seeds enhance the productivity level. 2. Use of modern machinaries promote huge yield per unit of land.
Two unintended outcomes: 1. Loss of soil fertility. 2. Increase of salinity in under ground water.
Explanation:
In 1960s green revolution brought a drastic change in India's agricultural pattern. Yield per unit of land increase rapidly. It introduced the use of modern machineries, pesticide & weedicides in the crop land, HYV (High yielding variety) seeds etc.
Besides due to green revolution pollution level rise up, salinity level in the ground water increases and even the soil fertility level decreases. Huge and frequent use of pesticides and insecticides promotes soil erosion and crop rotation, multiple cropping system reduces soil fertility level.
Your answer is D. All of the above.
